Yunyung commented on code in PR #19635:
URL: https://github.com/apache/kafka/pull/19635#discussion_r2072640806
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core/src/main/scala/kafka/server/KafkaApis.scala:
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@@ -429,6 +427,8 @@ class KafkaApis(val requestChannel: RequestChannel,
val memoryRecords = partition.records.asInstanceOf[MemoryRecords]
if (!authorizedTopics.contains(topicIdPartition.topic))
unauthorizedTopicResponses += topicIdPartition -> new
PartitionResponse(Errors.TOPIC_AUTHORIZATION_FAILED)
+ else if (!metadataCache.contains(topicIdPartition.topicPartition))
+ nonExistingTopicResponses += new
TopicIdPartition(topicIdPartition.topicId(), topicIdPartition.topicPartition())
-> new PartitionResponse(Errors.UNKNOWN_TOPIC_OR_PARTITION)
Review Comment:
Thanks for the PR. How about doing this instead?
```suggestion
nonExistingTopicResponses += topicIdPartition -> new
PartitionResponse(Errors.UNKNOWN_TOPIC_OR_PARTITION)
```
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